Improvement in lamp-cranes



A. 0. BLACK.

Lamp Crane. No. 92,570. Patentedlqly 1a, 1869.

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ANDREW C. BLACK, OF KAUKAUNA, WISCONSIN.

Letters Patent No. 92,570, dated July 13, 1869.,

IMPROVEMENT IN LAMP-CRANES.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern;

Be it known that 1, ANDREW 0. BLACK, of Kaukauna, in the county of Outagamie, in the State of Wisconsin, have invented a new and useful device for the support and adjustment of hanging lamps, which I call aLamp-(Jrane; and I do hereby declare the following to be a full and correct description of the same, reference being had to the accompanying drawings, in which Figure 1 is a perspective view of my lamp-crane complete, attached to the ceiling of a room.

Figure 2 is a side elevation, and

Figure 3, a bottom view ofv the same.

The same letter indicates the same part in the several figures.

The invention consists of a suspended, swivelling crane, on any part of the arm of which a lamp may be hung, and said arm turned aroundan entire circle, the objectbeing to provide a simple, convenient, and inexpensive device for giving to a suspended light any desired position in the apartment in which it is used.

In the accompanying drawing-- A marks a board, to which the crane-swivel is attached.

. This board-is to be attached, by screws (1. a, to the ceiling of the apartn'lent in which the crane is to be used.

To it is attached the swivel-hook s by the headed pin 0, pn which the swivel turns freely around the entire circle.

In this hook is hung, by pivot 1), the crane B, which has one short and one long arm.

On the end of the short arm is an axle, b, which receives a wheel or roller, 0, the periphery of which rests upon the under surface of the board A.

This roller facilitates the swivelling of the crane B.

A rack, R, formed of wire, so bent as to make a series of hooks, h II, as shown, and havingthe outline of a circular arc, serves as a means of attachment for the lamp, and also for adjusting its height above the By changing the distance of the lamp from the centre on the arm B, and by turning that arm, the lamp maybe brought over any point in the area of the circle of which the long arm of the crane is the radius.

Vhat I claim. and desire to secure by Letters Patent, isi A lamp-crane, consisting of an arm or lever suspended from the ceiling of a room by a swivel-joint, so as to be capable of movement around an entire circle, and havii ig awheel on one end to facilitate its motion, and supporting the lamp at any desired point on the other end, substantially in the manner and for the purpose hereinbetbre set forth.

The above specificatiouof my said invention signed and witnessed at \Vashington, this 27th day of April, A. D. 1869.

A. (i. BLACK.

Witnesses A. O. BRADLEY, ("has I. S'rANsmmY. 

